Kusum a small town school going girl is very fond of movies and has a crush on filmstar Dharmendra. No one knows the extent of her crush until she meets her sister-in-laws brother Navin who falls in love with her. When Navin comes to know about the reality he discusses it with his uncle Utpal Dutt and with Dharmendras help they show her the difference between the real and the reel world and Guddi Changes.